Powerful long runner. The ZenBook 13 does not lack in power. ASUS have equipped the slim Ultrabook with a quad-core processor and a dedicated graphics card. Coupled with that is a quick SSD, long battery life and a good display. Nevertheless, the seemingly successful ZenBook draws some criticism.
https://www.notebookcheck.net/ASUS-ZenBook-13-UX331UA-i7-8550-GeForce-MX150-SSD-FHD-Laptop-Review.284986.0.html
UX331UA should be Intel HD and not MX150. You've already tested the MX150 version as UX331UN.
Is your data wrong ??
It also works perfect with Linux! See: https : //dov.github.io/fedora/asus/2018/02/17/fedora-on-zenbook-ux331ua.html
Great portable though the SSD drive smallish. The concern I have is the problem with hinge quality! When one broke realized the cost was incredible at ASUS nearly cost I paid. To do it myself following videos was crazy.
One one thing holds this back being useful. ***16 GB ram is the minimum you need. Improvements that will make this better is 2 usb c with charging